A growing media storm about the 787 glitches echoes global publicity a year ago over wing cracks on the A380 superjumbo, built by Boeing's European rival Airbus EAD.PA .

The A380 has also been deemed safe to fly and few airlines have reported a dip in bookings, but the problems are expected to end up costing Airbus up to €500m in repairs.

In both cases, everyday glitches have been swept up in the wider storm of publicity and attracted unusual attention, along with more serious problems.

"I can't think of any similar investigations, but apart from the battery fire, all the other things we have seen are 'so what?'" Paul Hayes, safety director at aviation consultancy Ascend, said of the FAA review.

The 787 Dreamliner made its first commercial flight in late-2011 after a series of production delays put deliveries more than three years behind schedule. By the end of last year, Boeing had sold 848 Dreamliners. It now has 50 in service.

Conner said the recent issues had not been caused by either outsourcing production or boosting it too quickly.

"We have complete confidence in the 787 and so do our customers," he said.

The 787 makes extensive use of electrical components to perform tasks previously carried out by heavier equipment such as hydraulics.

In India - where state-owned Air India has taken delivery of six Dreamliner jets and has more on order - a senior official at the aviation regulator said there was concern at the recent spate of Dreamliner glitches.

The Directorate General of Civil Aviation has not ordered any Dreamliner checks for now, but is waiting for a safety report on Monday's fire from the U.S. National Transportation Safety Board, the official said.